Here's another competitor. Sirin Labs from Israel is apparently about to launch a secure phone that sells for $10,000.

http://thenextweb.com/mobile/2016/04...le-smartphone/

It would appear to be an Android fork as I notice the sales position on their site at http://corporate.sirinlabs.com/careers/sales-consultant mentions you have to "Speak Android fluently" and Russian, Arabic or Chinese and their Mayfair sales location explains their market. ie. Rich tax avoiding oligarchs who would not bat an eyelid at $10,000 on a phone that hides what they're up to.